/Python/Add column to df from another df

Add column to df from another df

How to add a column to a pandas df

#using the insert function:
df.insert(location, column_name, list_of_values) 
#example
df.insert(0, 'new_column', ['a','b','c'])
#explanation:
#put "new_column" as first column of the dataframe
#and puts 'a','b' and 'c' as values

#using array-like access:
df['new_column_name'] = value

#df stands for dataframe

Add column to df from another df

# pre 0.24
feature_file_df['RESULT'] = RESULT_df['RESULT'].values
# >= 0.24
feature_file_df['RESULT'] = RESULT_df['RESULT'].to_numpy()

Source: stackoverflow.com

Similar codes

0 vote301 views2 answers
Pytest teardown method
Python
0 vote305 views1 answer
Indexing python first and last
Python
0 vote351 views1 answer
Can't import flask login
Python Flask
7 votes341 views2 answers
Create the dataframe column based on condition
Python
3 votes290 views1 answer
Matplotlib y axis log scale
Python
0 vote299 views1 answer
Python compine multiple lists
Python
1 vote318 views1 answer
Play music with time in python
Python
0 vote319 views1 answer
How to get location using python
Python
0 vote396 views1 answer
How to export schema in graphene django
Python Django
0 vote304 views1 answer
Template tag django
Python